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Add HMAC-SHA224 (but it does not work yet!)
Unit Tests for HMAC-SHA224 not passed
This commit is contained in:
Pavel Tvrdík
parent
e4e80e4f8f
commit
ac2dc0510f
39
lib/sha256.c
39
lib/sha256.c
@ -392,6 +392,45 @@ sha256_hmac_init(sha256_hmac_context *ctx, const void *key, size_t keylen)
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}
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}
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void sha224_hmac_init(sha224_hmac_context *ctx, const void *key, size_t keylen)
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{
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sha224_init(&ctx->ctx);
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ctx->finalized = 0;
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ctx->use_hmac = 0;
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if (key)
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{
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int i;
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unsigned char ipad[64];
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memset(ipad, 0, 64);
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memset(ctx->opad, 0, 64);
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if (keylen <= 64)
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{
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memcpy(ipad, key, keylen);
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memcpy(ctx->opad, key, keylen);
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}
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else
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{
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sha224_hmac_context tmp_ctx;
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sha224_hmac_init(&tmp_ctx, NULL, 0);
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sha224_hmac_update(&tmp_ctx, key, keylen);
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sha224_final(&tmp_ctx.ctx);
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memcpy(ipad, tmp_ctx.ctx.buf, 32);
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memcpy(ctx->opad, tmp_ctx.ctx.buf, 32);
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}
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for(i=0; i < 64; i++)
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{
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ipad[i] ^= 0x36;
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ctx->opad[i] ^= 0x5c;
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}
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ctx->use_hmac = 1;
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sha224_hmac_update(ctx, ipad, 64);
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}
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}
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/* Update the message digest with the contents of BUFFER containing
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LENGTH bytes. */
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void
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16
lib/sha256.h
16
lib/sha256.h
@ -42,8 +42,8 @@ byte* sha224_final(sha224_context *ctx)
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return sha256_final(ctx);
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}
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/*
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* HMAC-SHA256
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/**
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* HMAC-SHA256 & HMAC-SHA224
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*/
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typedef struct
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{
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@ -52,9 +52,21 @@ typedef struct
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int use_hmac:1;
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byte opad[64];
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} sha256_hmac_context;
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typedef sha256_hmac_context sha224_hmac_context;
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void sha256_hmac_init(sha256_hmac_context *ctx, const void *key, size_t keylen);
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void sha224_hmac_init(sha224_hmac_context *ctx, const void *key, size_t keylen);
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void sha256_hmac_update(sha256_hmac_context *ctx, const void *buf, size_t buflen);
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void sha224_hmac_update(sha224_hmac_context *ctx, const void *buf, size_t buflen)
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{
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sha256_hmac_update(ctx, buf, buflen);
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}
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const byte *sha256_hmac_final(sha256_hmac_context *ctx);
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const byte *sha224_hmac_final(sha224_hmac_context *ctx)
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{
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return sha256_hmac_final(ctx);
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}
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#endif /* _BIRD_SHA256_H_ */
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@ -171,6 +171,20 @@ get_sha256_hmac(const struct hmac_data_in in, char (*out_hash)[SHA256_HEX_SIZE])
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sprintf(*out_hash + i*2, "%02x", hash_byte[i]);
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}
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static void
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get_sha224_hmac(const struct hmac_data_in in, char (*out_hash)[SHA256_HEX_SIZE])
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{
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sha224_hmac_context ctx;
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sha224_hmac_init(&ctx, in.key, in.key_len);
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sha224_hmac_update(&ctx, in.data, in.data_len);
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byte *hash_byte = sha224_hmac_final(&ctx);
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int i;
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for (i = 0; i < SHA224_SIZE; i++)
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sprintf(*out_hash + i*2, "%02x", hash_byte[i]);
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}
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static int
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t_sha256_hmac(void)
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{
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@ -303,6 +317,139 @@ t_sha256_hmac(void)
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return BT_SUCCESS;
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}
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static int
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t_sha224_hmac(void)
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{
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struct in_out {
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struct hmac_data_in in;
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char out[SHA256_HEX_SIZE];
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} in_out[] = {
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{
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.in = {
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.key = {
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0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
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0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
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},
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.key_len = 20,
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.data = "Hi There",
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.data_len = 8,
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},
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.out = "896fb1128abbdf196832107cd49df33f47b4b1169912ba4f53684b22",
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},
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{
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.in = {
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.key = "Jefe",
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.key_len = 4,
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.data = "what do ya want for nothing?",
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.data_len = 28,
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},
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.out = "a30e01098bc6dbbf45690f3a7e9e6d0f8bbea2a39e6148008fd05e44",
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},
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{
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.in = {
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.key = {
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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},
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.key_len = 20,
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.data = {
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd, 0xdd,
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},
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.data_len = 50,
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},
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.out = "7fb3cb3588c6c1f6ffa9694d7d6ad2649365b0c1f65d69d1ec8333ea",
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},
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{
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.in = {
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.key = {
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0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a,
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0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14,
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0x15, 0x16, 0x17, 0x18, 0x19,
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},
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.key_len = 25,
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.data = {
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd, 0xcd,
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},
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.data_len = 50,
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},
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.out = "6c11506874013cac6a2abc1bb382627cec6a90d86efc012de7afec5a",
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},
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{
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.in = {
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.key = {
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0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
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0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
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},
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.key_len = 20,
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.data = "Test With Truncation",
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.data_len = 20,
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},
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.out = "0e2aea68a90c8d37c988bcdb9fca6fa8",
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},
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{
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.in = {
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.key = {
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa,
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},
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.key_len = 131,
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.data = "Test Using Larger Than Block-Size Key - Hash Key First",
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.data_len = 54,
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},
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.out = "95e9a0db962095adaebe9b2d6f0dbce2d499f112f2d2b7273fa6870e",
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},
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{
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.in = {
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.key = {
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
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0xaa,
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},
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.key_len = 131,
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.data = "This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.",
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.data_len = 152,
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},
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.out = "3a854166ac5d9f023f54d517d0b39dbd946770db9c2b95c9f6f565d1",
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},
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};
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bt_assert_fn_in_out(get_sha224_hmac, in_out, NULL, "'%s'");
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return BT_SUCCESS;
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}
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int
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main(int argc, char *argv[])
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{
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@ -313,6 +460,7 @@ main(int argc, char *argv[])
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bt_test_suite(t_sha256_concating, "Testing concating input string to hash process via sha256_update");
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bt_test_suite(t_sha256_hmac, "Test Suite by RFC 4231");
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bt_test_suite(t_sha224_hmac, "Test Suite by RFC 4231");
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return bt_end();
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}
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